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Spontaneous decay in the presence of dispersing and absorbing bodies: General theory and application to a spherical cavity

Spontaneous decay in the presence of dispersing and absorbing bodies: General theory and application to a spherical cavity

A formalism for studying spontaneous decay of an excited two-level atom in the presence of dispersing and absorbing dielectric bodies is developed. An integral equation, which is suitable for numerical solution, is derived for the atomic upper-state-probability amplitude. The emission pattern and the power spectrum of the emitted light are …